REAL WORLD FILE TRANSFER
We also wanted to see how performance was in a real-world use when transferring large files to the SSD. For this test, we are going to simply stress write performance by transferring over a 30GB folder of movies off of a 250GB Samsung 960 EVO to the test SSDs and time how long it takes. Once complete we can calculate the average speed.
In our file transfer test, the E12 delivered similar performance to what we have seen with the E7, just slightly better with an average of 1,258MB/s.
For our power consumption testing, we have the drive connected to the system as a secondary drive. To record the wattage, we are now utilizing a Quarch Technology Programmable Power Module. It allows us to accurately measure power consumption over time and is flexible enough to allow us to test any SSD that comes our way.
Our power analysis may change as time goes on, but for now, we are looking at just a few metrics with the main goal of measuring our results against the manufacturer’s ratings. Because most consumer systems are at idle for about 80% of the time, idle power consumption is an important measure to look at when understanding the efficiency of a drive.
First up we have our results with Active State Power Management disabled. Here they averaged 0.6W at idle. This is a welcomed improvement from the E7 which averaged about 1-1.1W.
In the chart above we are showing the idle results with ASPM enabled and Windows power plan set to power saver, rather than high performance. We can see that it consumes even less power, just 84mW, which is a significant improvement from the E7 which consumed about 0.5W-1W in our test samples.
Finally, we wanted to post up a graph of the power efficiency of the SSDs in write transfers. We are looking at MB/s per Watt in this graph. The higher the result, the better.
The chart above shows us just how efficient an SSD is in writing data. Here we can see that the Phison E12 with BiCS3 NAND is very efficient and beats the WD Black/SanDisk Extreme Pro, Samsung 970 Pro, and even the MyDigitalSSD SBX which has their PCIe 3.0 x2 E8 controller in it.